<div id="submit" class="mb-2 formio-form-group has-feedback formio-component formio-component-button formio-component-submit  required mb-2 formio-form-group" ref="component">
  <button ref="button" name="data[submit]" type="submit" class="btn btn-primary btn-md" lang="en">
    Submit
  </button>
  <div ref="buttonMessageContainer">
    <span class="help-block" ref="buttonMessage"></span>
  </div>
  <div ref="messageContainer" class="formio-errors invalid-feedback"></div>
</div>